Avid, the makers of Pro Tools, have just released version 12.6.1. Heres what Avid put in the release notes:

Pro Tools and Pro Tools | HD Software 12.6

Pro Tools 12.6.1 includes a newly made HD Driver that is adapted to the significant changes made in Mac OS starting with OS X 10.10. This new driver restores Core Audio support and is included with Pro Tools HD 12.6.1. We would like to show you a description here but the site won’t allow us. Pro Tools and Pro Tools HD Software 12.6.1 on Windows 7, Windows 8.1, and Windows 10 — 11/17/16 2 Pro Tools does not recognize iLok connected to USB3 ports (PTSW-158204) Texas Instruments USB3 controllers are current ly incompatible with iLok generation 1 & 2 USB keys. ILok keys connected to a Tex as.

Crack data feeding. HD Driver

Updated Core Audio Driver for HD systems Joysticks and sliders after effects.

Pro Tools 12.6.1 includes a newly made HD Driver that is adapted to the significant changes made in Mac OS starting with OS X 10.10. This new driver restores Core Audio support and is included with Pro Tools HD 12.6.1.

Bug Fixes

MIDI Delay Compensation

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MIDI notes are no longer recorded late by the delay compensation value (PT-220861)

Breakpoint Editing

Grid Toggle is disabled when adjusting automation, MIDI, or Clip Gain breakpoint controls in Slip Mode to avoid conflict with fine-control editing (PT-221294)
Pressing the Command key (Mac) or Control key (Windows) while editing automation and MIDI breakpoints now suppresses Grid mode and enables fine-control editing. This is now consistent with breakpoint editing behavior for Clip Gain. Fine-control editing can be disengaged during mouse-down by releasing the Command key (Mac) or Control key (Windows), and then re-engaged by pressing the Command key (Mac) or Control key (Windows) again (PT-221952)
Using the Smart Tool to add a breakpoint on a Clip Gain line no longer incorrectly constrains the breakpoint to the nearest grid line (PT-221919)
Fixed multiple automation breakpoint editing inconsistencies with Grabber Tool (PT-221862)

Editing

The Tandem Trimming option (introduced in Pro Tools 12.6) has been removed from the Options menu. Tandem Trimming is only available using key modifiers: Command-Control-click (Mac) or Control-Start-click (windows) with the Trim tool. Note that TCE and Elastic trim do not support Tandem Trimming.
Fade length settings from the batch fades dialog are now used when pressing the single-key “f” command to create fades (PT-218064)
Fixed a case where clip groups from created before 12.6 were broken when opening the session (PT-221888)
Audiosuite rendering with Clip by Clip and Create Individual Files settings no longer alters clip lengths unexpectedly (PT-216026)
With a selection across Audio and Instrument tracks, nudge no longer fails to move audio clips within the selection (PT-221115)
The Heal Separation command no longer includes adjacent clips that are not selected in some cases while using Layered Editing (PT-221928)
The nudge command no longer fails to move selected MIDI notes while using Layered Editing (PT-221116)
Deleting a fade out that is also an overlap of another clip no longer deletes the underlapping clip (PT-221271)
Edit/Timeline Selection is no longer lost when copying a selection within a clip to a new playlist (PT-221270)
Moving a fade on one clip that overlaps another no longer trims the underlapping clip (PT-221450)
While using the respective “Send Fully Overlapped Clips…” preference for editing, clips that are fully overlapped by nudging another clip over it no longer fail to be sent to a new playlist (PT-221274)
Fixed a case where Analysis markers would not be displayed on part of an underlapped clip when switching to Warp track view (PT-221672)

Automation and Mixing

Fixed a case where soloing and unsoloing tracks could cause AAE error -9155 “Automation is too dense.” (PT-220691)
Previously written front-to-back pan automation now plays back correctly while previewing front left/right automation moves (PT-221130)
Engaing a VCA solo no longer fails to change the state of solos on tracks in the underlying group (PT-222010)
Emphasis has been added to the dialog warning users about writing automation to the entire timeline (PT-221890)
Fixed a case where newly created VCAs could not be record enabled on the S6 Master Post Module (PT-221664)

Crashes and Errors (Please continue to submit crash logs!)

Pro Tools 12.6.1 Macosx Torrent

Fixed cases where certain sessions created before 12.6 would throw an assertion error when opening or crash when attempting to Import Session Data (PT-221127)
Fixed a case where entering track comments could cause a crash on Windows 8 and Windows 10 only (PT-218721)
Fixed a case where deleting a VCA track with a D-Control connected to Pro Tools could cause a crash (PT-221285)
Fixed a case where deleting complex multi-selections of clips and clip groups across multiple tracks could cause a crash (PT-221288)
Fixed a case where dragging and dropping a MIDI file to a MIDI Instrument track caused a crash (PT-222247)
Fixed a case where unchecking “Ignore Errors” in the playback engine could cause a crash with some 3rd party audio interfaces (PT-209601)
Fixed a case where undoing immediately or sometime after using the keyboard shortcut to switch playlists would cause a crash (PT-221780)

Video

Fixed a case where frames would be dropped at the beginning of playback with newer BlackMagic video cards (PT-221056)

Workspace

Workspace searches of mapped network volumes no longer fail to find files as expected (PT-211720)

Pro Tools 12.6.1

Miscellaneous

When recording to Avid ISIS or NEXIS storage, an intermittent delay of several seconds no longer occurs when starting a record pass (PT-216388)
Fixed relinking behaviors for copied WAV and AIFF media when importing data from an AAF (PT-209751)
Recalling Memory Locations that show all tracks in large sessions is now faster (PT-221011)
Window positions are now correctly restored when using two displays on Mac OS X El Capitan (PT-221010)
Fixed a UI clipping issue for the Copy Selection to New Playlist command in the Edit menu (PT-221883)
MIDI continues to play on deactivated instrument track (PT-221284)
The Cancel Recording command no longer fails to delete and remove MIDI clips from the timeline when canceling a record using one of the punch record modes (PT-220488)

Collaboration and Project Sync

Fixed an assertion error that could occur after undoing a track download that could prevent further downloads on affected tracks (PT-220148)
Projects created by the Save Copy In… command are no longer forced to multi-mono audio file type (PT-217280)
When going offline and back online, collaboration features no longer fail to reactivate (PT-221749)